.li{
    line-height: 40px;
    cursor: pointer;
    padding: 0 16px 0 24px;
    margin: 8px 0;
    &.active{
        background-color: #e6f7ff;
        border-right: 3px solid #1890ff;
    }
    &:hover{
        background-color: #f5f5f5;
    }
}